Fewer Clayton County students met or exceeded standards for math on a statewide exam, according to Georgia Department of Education data released Wednesday.

For example, only 75 percent of fifth-graders met or exceeded the Criterion-Referenced Competency Test in math, the data showed. By comparison, about 84 percent of fifth-graders met or exceeded the CRCT math standards during the 2012-13 school year.

Nearly one-third of Clayton’s eighth-graders did not meet the CRCT math standards, the data showed. During the prior school year, 26 percent of Clayton’s eighth-graders did not meet the CRCT math standards.

The tests were administered in April.

There was some good news in the Clayton results. More than 40 percent of eighth-graders exceeded the reading standards. During the prior school year, 32 percent of eighth-graders exceeded the reading standards.

State reading and math tests in grades 3, 5, and 8 are considered high-stakes because passing them is generally required for promotion to the next grade.

The CRCT, which will be replaced by a new standardized test next spring, is administered in grades three through eight in reading, English/language arts, math, science and social studies.